JPS61209218A - Manufacture of high resiliency polyurethane foam - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing high modulus polyurethane foam.

Basically, high modulus polyurethane foams are produced by reacting higher, primary hydroxyl terminated, high molecular weight polyols with organic isocyanates and water. High modulus polyurethane foams are distinguished from conventional hot cure polyurethane foams by the use of such polyols and the fact that high modulus polyurethane foams require little or no curing in a hot oven. , therefore often cold curing (
cold cure) form. Such foams are suitable for cushioning applications due to their excellent wm properties, such as very high foam elasticity, low flammability, closed cell structure, low bending fatigue (long life) and high SAC factor (load carrying capacity). highly desirable.

This foam can sometimes be produced without cell stabilizers due to the high reactivity of the high modulus foam components and their rapid formation of gel strength. However, such foams typically have highly irregular cell structures, especially as evidenced by surface depressions, and it is important to note that no suitable agent has been found to aid in the lateralization of cell structures. This was a major problem in the technical field.

Attempts to solve the above problems using surfactants commonly used to stabilize thermoset poly9-urethane foams have shown that such surfactants lead to overstabilization and produce very stiff, shrunken foams. Because of the tendency, it has not been proven to be satisfactory. A decrease in the concentration of such surfactant is necessary because at concentrations that eliminate shrinkage, the bubbles are no longer satisfactorily stabilized and the foam structure begins to contain irregular, rough layers and surface depressions. Doesn't solve the problem.

U.S. Pat. No. 4,042,540 discloses that various low viscosity siloxanes, including low viscosity dimethyl silicone oils, are also good stabilizers for high modulus polyurethane foams. are doing. The use of low viscosity dimethyl silicone oil alone as a high modulus 7 ohm stabilizer also has various disadvantages.

For example, at low concentrations they create weighing and pumping problems that can interfere with the foam processing process, whereas at high concentrations!
If it occurs once, it will adversely affect the physical properties of the form. Such weighing and pumping problems may be solved by using silicone dissolved in a solvent at low concentrations. However, solvents for dimethylsiloxane oil that do not react with the 7-ohm component, such as alkanes and hexamethyldisiloxane, adversely affect the physical properties of the foam in proportion to their concentration and generally pose a flammability hazard. let Furthermore, diluents that react with incyanate, such as polyether triols, which do not significantly alter the properties of the foam, are satisfactory for dimethyl silicone oils, as long as they repel within the system and become part of the 7 ohm structure. It is not a sticky solvent. The reason is,
This is because the oil does not dissolve in sufficient quantities to provide 7 ohm stabilization at practical solution concentrations. High elasticity 7 ohm
It is also adversely affected by dimethyl silicones having more than about 10 dimethylsiloxy units per siloxane. For example, even if the concentration of such species in dimethyl silicone oil is only 5 or 10 weight scratches, the physical properties of the foam will be severely degraded and shrinkage of the foam will also occur.

Several other patents disclose organosiloxane copolymers and their use as foam stabilizers in high modulus 7 ohm formulations. U.S. Pat. No. 3,905,924 relates to the use of cyanoalkylsiloxane copolymers as stabilizers for high modulus polyurethane foams. US Pat. No. 3,741.917 refers to the use of siloxane-oxyalkylene copolymers and the organosiloxane copolymers in the formulation of high modulus polyurethane foams. U.S. Patent No. 3゜9
No. 35.133 teaches the use of high molecular weight silicate esters of polyether alcohols for the stabilization of high modulus poly9 urethane 7 ohms.

U.S. Patent Application No. 932°63 dated August 10, 1978
No. 7 discloses a method for making high modulus polytsurethane 7 ohm using a combination of an organosiloxane copolymer and a hydrocarbon oil as a foam stabilizer. However, none of the above-mentioned patents or applications disclose the novel alkyl-modified siloxane copolymers of the present invention and their unexpectedly advantageous use as 7-ohm stabilizers in the production of low-ffi, high-modulus poly9-urethane foams. The usefulness is not disclosed.

Over the past few years, cushions made from high modulus polyurethane foam have become increasingly widely used in automobile seats. Requirements in the automotive industry are to reduce the 7 ohm density required for seat cushions, which increases the difficulty of stabilizing high modulus polyurethane foams. Recently, 1.50~1.
A new high water content system is proposed that is capable of producing foam cushions with a density of 75 pounds per cubic foot and acceptable physical properties compared to commercially available foam systems.
It was. However, this new high water system produces foams with large, irregular cells or causes foam collapse in the absence of the 7 ohm stabilizing surfactant. Commercially available high modulus poly9 urethane foam surfactants (low viscosity dimethylsilicone oil, cyanoalkylsiloxane copolymers and siloxane-
Adding J containing oxyalkylene copolymers to the new high water systems described above did not solve the problem.

Commercially available surfactants for high modulus polyurethanes (7 ohm) cause foam collapse, and surfactants for commercially available soft 1, heat cured polyurethanes cause excessive shrinkage and air bubble formation. Obtaining surfactants with a degree of cell stabilizing ability remains a problem in low density, high modulus polyurethane foam formulations.

The present invention utilizes certain low molecular weight organosiloxane copolymers to control the cell uniformity of low density, high modulus polyurethane foams with little, if any, foam shrinkage. It is based on the discovery that surfactants can be used.

Moreover, according to the present invention, the 7 ohm recess is eliminated (or at least greatly reduced), and the cellular structure of the low density, high modulus polyurethane foam is much better than without the use of surfactants. It becomes uniform and fine. The present invention provides a polyurethane foam with an alkyl modification group having 5 carbon atoms, which provides a low-density, high-modulus polyurethane foam with an unexpectedly superior cell structure compared to existing surfactants for high-modulus polyurethane foams.
A low molecular weight, alkyl-modified methylsiloxane copolymer of ~20 is provided.

The new organosiloxane copolymer is
1) [In the formula, Me is a methyl group, R is an alkyl group having 5 to 20 carbon atoms, n has an average value of 1 to 4, and p is 1
an organosiloxane copolymer having an average value of −2 and the ratio of n and p has a value of 1 to 3; and (b) an average formula % formula % (1) [wherein Me is It is a methyl group, and P” has 5 to 20 carbon atoms.
is an alkyl group, and n is 0 to 8 (preferably 1 to 8).
5), provided that the By group is 2 of the organosiloxane.
0 to 45 (preferably 25 to 40) by weight. Examples of radicals represented by R in formula I and R/ in formula... are pentyl, hexyl, heptyl, octyl, nonyl, tecilna. R' may be the same or different alkyl group in formula (2). Preferably R and R' have 5 to 12 carbon atoms.

Furthermore, the present invention relates to the use of the alkyl-modified methylsiloxane copolymers of the present invention as cell stabilizers in the production of low density, high modulus poly9 urethane foams.

More particularly, the present invention provides that a portion of (a)(1) contains at least 40 moles of primary hydroxyl groups and has about 2,000 to about 5
polyether triol with a molecular weight of ooo and (
11) A mixture of said polyether triol and other polyethers having on average at least two hydroxyl groups, wherein said polyether triol of said mixture represents at least 40% by weight of the total polyol content. an organic polyol selected from the group consisting of a mixture; Φ)
a polyisocyanate present in the mixture with the organic polyol in the main amount and in the relative amount with the organic polyol required for producing the polyurethane foam;
(C) a blowing agent S in a small amount sufficient to foam the reaction mixture; (d) a catalytic amount of a catalyst to produce a polyurethane foam; (e) a low component amount of an organosiloxane copolymer of the invention; and (f) foaming and reacting a reaction mixture containing a low amount of flame retardant sufficient to retard the flammability of the polyurethane foam. Not large (preferably no larger than 1.75 pounds per cubic foot)
The present invention also relates to a method for producing high modulus polyurethane foam having density.

The low-density, high-modulus polyurethane foam produced by the method of the invention has a uniform cell structure and a smooth molding surface. Furthermore, the alkyl-modified siloxane copolymers according to the invention can be used in a wide range of applications (e.g. polyether polyol 10
0.02 to 5.0 parts by weight) and can be used in solution, resulting in easy weighing and pumping into foam formulations.

The novel organosiloxane copolymers of this invention can be made in several ways. A preferred method is to use an alkene having 5 to 20 carbon atoms, [wherein Me, ns I] and the ratio of n and p is as defined in formula (1)] and HMe 2S io (Me, S 1Q )nS iMe
2H(IV), where Me and n are defined in formula (II) and are trajectories. The mixture is heated to a temperature of about 75 to about 85° C. in a 500 mm reaction flask equipped with a mechanical stirrer, condenser and temperature controller. When platinum catalyst is added to this mixture at this temperature, an exothermic reaction is observed. Chlorplatinic acid is particularly effective, but other well-known platinum derivatives can also be used. The catalyst is conveniently added as a solution in, for example, tetrahydrofuran, ethanol, butanol, or a mixed solvent such as isopropanol/1,2-dimethoxyethane. A suitable catalyst concentration, based on the total weight of the hydrosiloxane fluid and alkene reactant, is between 5 and so ppm platinum, although higher or lower concentrations can be used. A solvent can also be used in the reaction of the present invention. However, solvents that react with the 5i-H groups of the hydrosiloxane fluid under the conditions of the present invention should not be used. Methanol, ethanol, glopanol and ether alcohols fall into this category. Hydrocarbons such as benzene, toluene and xylene are useful solvents for the reaction. Ethers are another useful type of solvent.

The temperature range for the reaction of the present invention is from about 60 to about 1380
It is. Lower temperatures can also be used, but the reaction time will be longer. Although higher temperatures up to 200C can be used, there are no advantages to such temperatures. Of course, the choice of solvent must be matched to the suitable temperature range. Removal or neutralization of chloroplatinic acid is desirable for long-term product stability. 17 um of hydrogen carbonate (commonly used to effect neutralization) was added to the reaction mixture and the resulting product was subsequently filtered under pressure. The organosiloxane copolymer of the present invention represented by the above formula I or H is produced in this way.

Other methods of making the novel organosiloxane copolymers of the present invention include conventional equilibration. To illustrate, an alkylmethylsiloxane can be equilibrated with a methylsiloxane using either an acid or a base as follows: Me, S io8 iMe, + n(Me, S i
o ) +p IR8161eol.

[In the formula, MeSRSn, p and the ratio of n and p are as shown in the above formula (1)
].

In this case, the usual acid catalysis used for standard dimethylsiloxane intermediates, i.e. sulfuric acid (H, 80,
) can be used as a catalyst. Anhydrous trifluoromethylsulfonic acid catalyst at a concentration of about 0.1 to about 0.5 kettle weight can also be successfully used. Equilibrate for about 2 hours with vigorous stirring at least until the mixture is stable.
It may be carried out at 5 to about 50C.

The relative amounts of the organosiloxane copolymers of the present invention used to make the polyurethane foams can vary over a wide range, and are generally organic, with copolymer amounts of about 5 parts by weight or more being used. also has no clear advantage, while 0
．． If less than 0.02 parts by weight is used, the stability of the foam against shrinkage will be impaired. Preferably, the organosiloxane copolymer is used in an amount of from 0.2 to 100 parts by weight of the organic polyol starting material.
Amounts ranging from about 2.0 weight kettles are used.

The polyhydroxyl reactant (organic polyol) used in this invention as a starting material for making polyurethane foams is a polyhydroxyl reactant (organic polyol) containing at least 40 molar proportions of primary hydroxyl groups and having a molecular weight of from about 2,000 to about 8,000. The polyether triol may therefore contain 6 secondary hydroxyl groups.
It cannot be contained in an amount of 0 mole or more. Preferably the polyether triol has about 55 primary hydroxyl groups.
~90 molar fraction and has a molecular weight of about 4,000 to about 7,000. Suitable polyether polyols for use in the present invention include alkylene oxides, trihydroxyl organic substances such as glycerol; 1,2,6-hexandriol; 1,1,1-trimethylolethane;
1,1-,1-trimethylolpropane, etc., as well as polyalkylene ethers obtained by chemical addition to mixtures thereof. The alkylene oxides used to prepare the above-mentioned preferred polyethers have from 2 to 4 carbon atoms, 7'l:l oxide and mixtures of propylene oxide and ethylene oxide are particularly suitable.

The organic polyol starting material used in the present invention may be a mixture consisting essentially of the polyether IJol as defined above and other polyether polyols having on average at least two hydroxyl groups. However, the polyether triol defined on the core represents at least 40, preferably 50 parts by weight of the total polyol content of the mixture. Examples of such other polyethers are triols, diols, tetraols and polymer/polyols etc. and mixtures thereof outside the ranges mentioned above.

Examples of such polyether polyols which can be mixed with the polyether triols mentioned above are alkylene oxides, diethylene glycol; dipropylene glycol; pentaerythritol; sorbitol; Hydroxyalkyl glucoside; Novolak resin; Water; Ethylene glycol; Propylene glycol; Trimethylene glycol IJ
=r −A/: 1.2-7” tyrene glycol: 1
, 3-7'tanediol;1,4-butanediol; 1
, 5-bentanediol; 1,2-hexane glycol; 1°10-f candiol; 1,2-cyclohexanediol; 2-butene-1,4-diol; 3-cyclohexane-1,1-dimetatool; 4 -Methyl-3-cyclohexene-1,1-dimetatool; 3-methylene-
Includes adducts to polyols such as 1,5-hentanediol; 4-(2-hydroxyethoxy)-1-7'tanol, and mixtures thereof.

Other types of polyether polyols which can be mixed with the polyether triols defined above and which can be used as starting materials in the present invention are described in British Patent No. 1,06
No. 3,222 and U.S. Pat. No. 3,383,351 are graft polymer/polyether compositions obtained by polymerizing ethylenically unsaturated monomers in polyethers. Suitable monomers for preparing such compositions include, for example, acrylonitrile,
Contains vinyl chloride, styrene, butadiene, vinylidene chloride, etc. Suitable polymers for preparing such compositions include, for example, the polyethers mentioned immediately above. These graft copolymer/polyether compositions contain from about 1 to about 70, preferably from about 5 to about 50, and most preferably from about 10 to about 4 unsaturated monomers polymerized in the polyether.
It can be contained in a weight ratio of 0. Such compositions conveniently contain monomers in the presence of free radical polymerization catalysts, such as peroxides, persulfates, percarbonates, vaporates, and azo compounds, as described in more detail in the references cited above. It is produced by polymerizing the polymer in selected polyethers at temperatures between 40 and 150C. The resulting composition may contain small amounts of unreacted polyether, monomer and free polymer as well as graft polymer/polyether complex. Particularly preferred are graft polymers/polyethers obtained from acrylonitrile and mixtures of styrene and polyether triols.

The particular organic polyol or polyols used as a starting material in the present invention depends solely on the end use of the cold cured polyether urethane foam.

For example, it has at least 40 molar proportions of primary hydroxyl groups and is preferably from 2000 to 4000 soooo, preferably from 4000 to
The use of a 70,000 molecular weight total 7000 riether triol generally corresponds to a hydroxyl number of 84 to 21, preferably 42 to 20, giving a uniquely soft polyether foam.

Auxiliary polyethers, which can have primary and secondary hydroxyl groups in any proportion and can be mixed with the required polyether triol, adjust the degree of softness of the foam or improve its durability. It can be used to change the load characteristics.

The above limitations are not intended to be limiting, but merely examples of the many possible combinations of polyether triols and other polyethers that may be used.

The hydroxyl number required for complete neutralization of the hydrolysis products of fully acetylated derivatives prepared from 1 volume of polyols or mixtures of polyols with or without other crosslinking additives used in the present invention. ■ Potassium hydroxide
Defined as a number.

The hydroxyl number is determined by the equation [where OH is the hydroxyl number of the polyol, f
is its sensuality, and m.

W is its molecular weight] It can also be defined by

A variety of organic incyanates can be used in the 7 ohm formulations of the present invention for reaction with the organic polyol starting materials described above to produce cold cured polyether 9-rethane foams. Suitable incyanates are polysaccharides of the general formula %, where Y is oxygen, i is an integer of 2 or more, and Q is an organic group having a valency of i. isocyanates and polyisothiocyanates. For example, Q is a substituted or unsubstituted hydrocarbon group, such as 1
It can be algylene and arylene with one or more aryl-NCY bonds and/or one or more alkyl-NCY bonds. Q is also -QZ
Also includes groups such as O-. However, in this case, Q is an alkylene or arylene group and 2 is a divalent residue such as C01
SO1 etc. Examples of such compounds are hexmethyl diisocyanate), 1,8-diisocyanato-p-
Menthane, xylylene diisocyanate, (OCNCH
tCH1CH20CHt)zOll-methyl-2,4-
Diisocyanatocyclohexane, phenylene diinocyanate, tolylene diisocyanate, chlorphenylene diisocyanate, diphenylmethane-4,4'-diisocyanate, naphthalene-1,5-diisocyanate, triphenylmethane-4,4',4''-triisocyanate , and Improvylbenzene-alpha-4-diisocyanate.Additionally, isocyanates useful in the present invention include dimers and dimer and diisocyanates of incyanate and polymeric diisocyanates, such as those with the general formula %. ) [wherein i and j are integers of 2 or more] and/or (as a further component in the reaction mixture) having the general formula %) ゛ [wherein i is 1 or and L is a monofunctional or polyfunctional atom or group.Furthermore, the polyisocyanate component used in the polyurethane foam of the present invention includes the following special compounds and Also includes mixtures of two or more of: 2.4-tolylene diisocyanate, 2.6-)lylene diisocyanate, crude tolylene diisocyanate, bis(4-incyanatophenyl)methane, phosgenation of aniline formaldehyde condensation products. polymethylene polyphenylisocyanate, 2°4.6-tolunin triisocyanate, and many other organic polyisocyanates known in the art, such as 5iefken, Ann.
, 565.75 (1949).

Aromatic polyisocyanates are generally preferred.

Particularly useful incyanate components in high modulus cold cure formulations included within the scope of this invention include combinations of isomeric tolylene diisocyanates and formulas (wherein R is hydrogen and/or lower alkyl and X has a value of at least 2.1]. Preferably, the lower alkyl group is methyl and
has a value of 2.1 to about 3.0.

The amount of polyisocyanate used will vary slightly depending on the nature of the polyurethane being produced. Generally, the polyinocyanate is 80 to 150%, preferably 90%, of the stoichiometric amount of incyanato groups required to react with all of the hydroxyl groups of the organic polyol starting material and with any water present as a blowing agent. ~110%
is used in the foam formulations of the present invention in such an amount as to provide . Most preferably, a slight excess of isocyanato groups over the stoichiometric amount is used.

Blowing agents that can be used in the process of the invention include water, liquefied gases with boiling points below 80F and above -60F, or other inert gases such as nitrogen, carbon dioxide, helium, and argon. Suitable liquefied gases are saturated aliphatic fluorohydrocarbons that vaporize at or below the temperature of the foamed body. Such gases may be at least partially fluorinated and otherwise halogenated. Suitable fluorocarbon blowing agents for use in foaming the formulations of the present invention include trichlorofluoromethane, dichlorofluoromethane, dichlorofluoromethane, 1,1-chloro-1-fluoroethane, 1 -chloro-1,1-sialo-2,2-dichloroethane and 1,1.1-)realo-2-chloro-2-fluoro-3,3-difluoro-4,4°4-trifluorobutane. A suitable blowing agent for the method of the invention is trichlorofluoromethane. The amount of blowing agent used will vary with the desired density of the foamed product. Usually organic polyol starting material 1
2 to 20 parts by weight of blowing agent per 00 parts by weight are preferred.

The catalysts used in this invention to make poly9-rethane include either amine or metal catalysts used in making conventional flexible and high modulus polyurethane foams. Examples of such common amine catalysts are N-methylmorpholine, N-ethylmorpholine, hexadecyldimethylamine, triethylamine, N,N,N',N'
-Tetramethyl-1,3-butanediamine, N,N-dimethylethanolamine, jetanolamine, 3-diethylamine-N,N-dimethylpropionamide, bis(2-dimethylaminoethyl)ether, N,N,N
', N'-tetramethylethylenediamine, 4.4'-
methylenebis(2-chloroaniline), dimethylbenzylamine, N-cocomorpholine, triethylenediamine, [1,4-diazabicyclo(2,2,23octane)], formate of triethylenediamine, other salts of triethylenediamine, and oxyalkylene adducts of primary and ni-amino groups, etc. Examples of common metal catalysts are tin salts of various carboxylic acids and nickel acetylacetonate. Metal catalysts suitable for the process of the invention are diptyltin dilaurate. Such amine and metal catalysts are
0.1-2 based on the total weight of organic polyol starting material
It is preferred to use weight-weight amounts in the mixture.

In producing high modulus polyurethane foams according to the method of the present invention, other additional components can be used in small amounts, if desired in producing foams for special purposes. Thus, flame retardants (eg, trichloroethyl phosphite) can be used to reduce the tendency of polyurethane foams to combust. Of course, any suitable organic solvent for the catalyst that does not substantially adversely affect the operation of the process or the reactants may also be used. Examples of solvents for such catalysts include polyols (eg, 2-methyl-2,4-hentanediol), cyfropylene glycol, and the like.

According to the present invention, high modulus poly9 urethane foams can be produced using suitable techniques. A preferred method is a one-step or one-shot method in which all of the reactants react simultaneously with the foaming operation. The second common method is called the prepolymer method. In this process, a prepolymer is formed by reacting a polyether starting material with a slight excess of incyanate, and the prepolymer is then foamed by reaction with water or an inert blowing agent.

Another method that may be used is to introduce a large excess of incyanate,
It is a pseudo-prepolymer process that involves reacting a polyether product containing an additional polyether in the presence of a blowing agent. Although it is sometimes preferred to premix the polyether starting material and organosiloxano copolymer, suitable premixes of the various components can be used. Due to the high thermal nature of the reaction, the high modulus polyurethane foam allows the reactants to be mixed at room temperature without the need for external heat and the foaming reaction mixture is poured into a suitable mold and the 7 ohm It is rapidly produced by self-curing.

Of course, if desired, the overall reaction can be further accelerated by preheating the foam and/or using conventional high temperature post-curing steps. Cold curing methods achieve a large degree of cure through the entire form in a short period of time with or without a post-curing step, and generally exhibit faster detackification and peeling than that achieved with conventional heat curing methods. Achieve the type period. For example, high modulus polyurethane 7 ohm made by cold curing processes can be demolded much more quickly than conventional heat cured polyurethane foams without substantial surface damage. Of course, it should also be understood that the cold cure polyurethane foams of the present invention can be manufactured in flat plate form if desired.

A further feature of the present invention is a novel composition suitable for use in producing high modulus polyether urethane foams. For example, the use of the novel organosiloxane copolymers in diluted form, i.e. in the form of an organosiloxane copolymer-solvent solution premix or an organosiloxane copolymer-media-catalyst solution premix, is particularly commercially viable. desirable when the scale is large.

Such solution premixes can help eliminate mixing, weighing, or settling problems. Furthermore, a smaller component stream can then be fed into the mixing head of the device. Of considerable importance is that the formulator has the freedom to choose the particular solvent that best suits the system and minimizes or eliminates the loss of foam properties. Organosiloxane copolymer-solvent-catalyst premixes can also be used since the solvent chosen can play the dual role of catalyst as well as solvent for the organosiloxane copolymer. This premix formulation simplifies the foaming operation and improves the accuracy of weighing the ingredients. Any suitable organic solvent can be used, such as hydrocarbons, hydrocarbons, organic hydroxyl compounds, alkyl heptatalates, etc., and preferably the solvent selected is one in which the organosiloxane copolymer is substantially dissolved. It should be.

For example, it is preferred that at least 5 parts by weight of the organosiloxane copolymer be dissolved in 95 parts by weight of the solvent. More preferably, the minimum percentage of organosiloxane copolymer in the solvent bath solution is at least about 10 to 10%.
Of course, it is understood that such solvents need not be used and the maximum percentage of organosiloxane copolymer in the solvent solution is not critical. Furthermore, such solvent solutions, if used, should of course be related to the amount of active organosiloxane copolymer available per 100 parts by weight of organic polyol starting material as outlined in the light. This relationship should also be considered regarding the catalyst when using an organosiloxane copolymer-solvent-catalyst solution. Preferably, the solvent for the organosiloxane copolymer is an organic hydroxyl compound, such as a hydroxyl-terminated organic ether compound. More preferably, they are polyether triols, diols and monools, ethylene oxide, propylene oxide, butylene oxide, initiators such as glycerol, water, trimethylolpropane, 1,2,6-hexanetriol, adducts to ethylene glycol, phthanol, nonylphenyl, etc. Of course, the oxyalkylene units of such adducts may be of different types, such as oxyproblene and oxyethylene groups, which may be randomly or in blocks. The most preferred solvents are those in which all or a major portion of the oxyalkylene moieties are oxypropylene units, and in which they have about 2,000 to 600
It is a polyether triol with a molecular weight in the range of 0. Furthermore, this discovery regarding the solubility of the organosiloxane copolymers of the present invention can be controlled and adjusted.

High modulus polyurethane foams made in accordance with the present invention can be used for the same purposes as corresponding conventional foams.

For example, they can be used where cushioning is desired, such as furniture, transportation systems, automobiles, aircraft, etc.; carpets; packaging of delicate items; etc.

The following examples are merely illustrative of the invention and are not intended to limit its scope.

In the examples the following abbreviations are used: P! (PP
Parts per 100 parts of polyol by weight cstk Methyl R Alkyl group having 5 to 20 carbon atoms VAZO Azobisisobutyronitrile In further examples, the following starting materials were used: a. Polyol Polyol 1 ．． A polyether polyol produced by polymerizing propylene oxide and then ethylene oxide using glycerol as an initiator. This polyether polyol has a molecular weight of approximately 4500 and a hydroxyl number of approximately 34. It contained about 85.5 weight units of propylene oxide, 14.5 weight units of ethylene oxide, and about 73 primary hydroxyl groups.

Polyol n, a polyether polyol produced by polymerizing propylene oxide and then ethylene oxide using glycerol as an initiator. This polyether polyol has a molecular weight of approximately 4500 and a hydroxyl number of approximately 34. This is approximately 85.5 it'II of propylene oxide, 14 it of ethylene oxide.
．． Contains about 80% of quintuple i-4 and primary hydroxyl groups.

Yes, styrene/acrylonitrile is a polyol! Polymers/polyols produced by polymerization in

This polymer/polyol had a hydroxyl number of approximately 28. This polymer contains styrene and acrylonitrile in 1 part
and polymer/polyol in a weight ratio of 211 of the total weight.

It was a mixture of about 80 g of soocyanate and about 20 g of 2,6-tolylene diisocyanate.

800 parts by weight of a polymethylene polyphenylene incyanate polymer containing about 2.5 to 2.9 moles of NCO per mole of weight polymer and having an incyanate content of about 31.4 parts by weight. A friend with compositions.

C. Polyurethane foam catalyst catalyst 1. This was a composition consisting of about 70 g of bis-(N,N-dimethylaminoethyl)-ether and about 30 g of dipropylene glycol solvent.

Catalyst 1, bis-(N,N-dimethylaminoethyl)-ether.

The catalyst layer was a composition consisting of about 33 parts of triethylene diamine and about 67 parts of dipropylene glycol solvent.

Catalyst 1, which was a composition consisting of approximately 33.3 parts by weight of 3-dimethylamino-N,N-dimethyl-propionamide and 66.6 parts by weight of ethoxylated phenol solvent.

Catalyst V. This is a composition comprising about 88 g of dibutyltin dilaurate and about 12 g of polyoxypropylene triol having a molecular weight of about 3000 and a hydroxyl number of about 56.

Catalyst ■. Jetanolamine.

Examples 1 to XXX
Described in V.

00 Foaming Agent Q Foaming Agent 1. Trichlorofluoromethane f, flame retardant flame retardant 1. ) Lichlorethyl phosphite 99, O
A solution consisting of 4.4 parts of chloroplatinic acid hexahydrate dissolved in 96.5% by weight of a solvent consisting of 1.0 parts by weight of Improper Tools. This solution contains 50 ppm by weight of the hydrosiloxane fluid and alkylene reactant.
used in children who give

Hexamethyldisiloxane (Me, SiO
8iMe, ) 42.17P C0,26-E nyl),
Cyclic dimethylsiloxane tetramer (Me, 5ill.

37.42F (0,126 mol), and (Me) (8i
A mixture consisting of 19.17f of Bot(methylhydrogensiloxane) containing about 0.32 equivalents was charged.

Additionally, about 2.0 (0.02 mol) of sulfuric acid (Ht80
．． ) catalyst was added. The mixture was stirred at room temperature for about 4 hours,
An equilibrated liquid product was prepared.

This equilibrated liquid product is converted into sodium bicarbonate (N
aHCO. The equilibrated liquid product, now properly referred to as a hydrosiloxane fluid, is a clear liquid with a viscosity of 1.86 cstk at a temperature of 25C. The 8i-H content of the hydrosiloxane fluid, as determined by alkaline hydrolysis, was equivalent to 71.7 cc of Hl, and the calculated molecular weight was 375. This hydrosiloxane fluid had an average composition. This will hereinafter be referred to as hydrosiloxane fluid ①. The composition and properties of the hydrosiloxane fluid used in this example are shown in Table I below.

8 g Part B: Preparation of a new organosiloxane copolymer 31.0 liters of hydrosiloxane fluid was added to a 500 m 3-tube reaction flask equipped with a mechanical stirrer, condenser and temperature controller.
r (0.08 mol) was charged.

The hydrosiloxane fluid 1 was then heated to 850 °C and the chloroplatinic acid solution was added to the reaction flask.

Furthermore, 1-octene 13.62 (0,1
The reaction flask temperature reached a maximum of 1320 °C due to the t6 exothermic reaction. The reaction was monitored by taking a sample IOC from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation tube test to determine the residual Si-H content. After all 8i-H had reacted, the reaction flask was cooled to room temperature. The product thus prepared was neutralized with sodium bicarbonate (Na) ICO,l and filtered through a pressure filter with an average filtration size of 10 microns. The product is 4, at a temperature of 25C.
An organosiloxane copolymer of the present invention having a viscosity of 32 cstk. This organosiloxane copolymer is a clear amber liquid with a calculated molecular weight of 509. This organosiloxane copolymer, hereinafter referred to as organosiloxane copolymer A, has an average composition Me, S io (Me, 81031.9 (MeS
iO),,SiMe3(CHt)DingCH.

It had The composition and properties of the organosiloxane copolymer of the present invention are shown in the table below.

Hexamethyldisiloxane (Me, Sits i
Me3 ) 44.63 f (0.28 mol), cyclic dimethylsiloxane tetramer (Me2Sill.

38.75f (0.52 mol) and (MeH8i0)
A mixture consisting of 319.1'l of poly(methylhydrogensiloxane) containing about 0.32 equivalents of 0.02 mol) of sulfuric acid (H, 80.1 catalyst) was added. The mixture was stirred at room temperature for about 4 hours to prepare an equilibrated liquid product.

This equilibrated liquid product was converted into sodium bicarbonate (N
Neutralized with aHCO, 14% by weight and then passed through a pressure filter having an average oversize of about 0.02 microns. The equilibrated liquid product, now properly referred to as a hydrosiloxane fluid, is a clear liquid with a viscosity of 1.81 cstk at a temperature of 25C. The Si-H content of the hydrosiloxane fluid as determined by alkaline hydrolysis is 2 equivalents of the hydrosiloxane fluid D 61.7. It corresponds to the hydrogen of CC, and the calculated nine-molecular force was 363. This hydrosiloxane fluid has an average composition Me, S io (Me, S io) x, s i
Me8ill,. S iMe.

It had This will hereinafter be referred to as hydrosiloxane fluid ①.

500 equipped with mechanical stirrer, compressor and temperature regulator
7 (7) 31. Add hydrosiloxane fluid ■ to the 3 Tulo reaction flask. OF+0.09 mol) was charged.

Next, hydrosiloxane fluid (1) was heated to 85°C and the chloroplatinic acid bath was added to the reaction flask.

Furthermore, 1-octene 11.6F[0,1
0 mol) was added dropwise at a concentration of 20% excess. This resulted in an exothermic reaction. The reaction was monitored by taking a sample from the reaction flask and determining the residual 8i-H content by measuring the hydrogen liberated by alkaline hydrolysis in a fermentation tube test.
After reaction, the reaction flask was cooled to room temperature and the product thus prepared was diluted with sodium bicarbonate (NaHC).
Neutralize with O5) and filter through a pressurized filter with average filtration dimensions o,io microns. The product has a temperature of 25
The organosiloxane copolymer of the present invention has a viscosity of 3.75 cstk at C. This organosiloxane copolymer has an average composition of Me, SiO(Me, SiO)□, (MeS
to)8. o SiMe3 (OH,) Ding CH3 is a friend. This will be referred to as organosiloxane copolymer B hereinafter.

Hexamethyldisiloxane [Me, Si
tsiMe3) 46.58? (0.29 mol), cyclic dimethylsiloxane tetramer (MetSi0143
6.16F<0.49 mol), and (MeH8i 0
A mixture consisting of 17.25f of poly(methylhydrogensiloxane) containing about 0.2 g equivalent of ) was charged.

Furthermore, about 2.0 kg of the total weight of the mixed product was added to the flask. Of (0.02 mol) of sulfuric acid (H,S
Add o, l catalyst and then. The mixture was stirred at room temperature for about 4 hours and the equilibrated liquid product was prepared.

This equilibrated and then liquid product is converted into sodium bicarbonate A (
Na) ICOs) neutralized at 4% by weight and then filtered through a pressure filter with an average filtration size of 0.02 microns. The equilibrated liquid product, now properly a hydrosiloxane fluid, has a temperature of 1.70 cs at a temperature of 25°C.
It is a transparent liquid with a viscosity of tk. 5i-H of hydrosiloxane fluids as determined by alkaline hydrolysis
Content is 64.4 cc H2 per 2 hydrosiloxane fluids
and the calculated molecular weight was 348. This hydrosiloxane fluid has an average composition tvie3 SiO(Me, 81t)) 1,7 tM
es 1o)0. . I had SiMe 3. This will hereinafter be referred to as the hydrosiloxane fluid layer.

Mechanical stirrer, condenser and temperature control! 50 with fj machine
0m+7) Add 28.0m of hydrosiloxane fluid 1 to the 3 Tulo reaction flask. Of+0.08 mol) was charged.

Hydrosiloxane fluid #1 was then heated to 850 °C and chloroplatinic acid solution # was added to the reaction flask.

Furthermore, 1-octene 11. Of+0.
10 mol] were added dropwise at a total concentration of 20 overexposure.

This results in an exothermic reaction9. This reaction was confirmed by taking a sample ICC from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation test tube test.
-H content was monitored. all S
After i -H had reacted, the reaction plus'':I was cooled to room temperature. The product thus prepared was diluted with sodium bicarbonate 9
Neutralized with NaHCO3, the average filtration size is 0.1
Filtered through a force ratio filter with 0 micron. The product was an organosiloxane copolymer of the present invention having a viscosity of 3.99 cstk at a temperature of 25C.

This organic xane copolymer has a calculated molecular weight of 461
It was a clear amber liquid with a

The organosiloxane copolymer had an average composition lC1(,)teCH4. This will be referred to as organosiloxane copolymer C hereinafter.

Hexamethyldisiloxane (Me, 5its iM
e, l 43.69ft 0.27 mol], cyclic dimethylsiloxane tetramer (Me, 8i01433.35
Poly(methylhydrogensiloxane 1) containing approximately 0.30 equivalents of
A mixture consisting of 18.03F was charged. Additionally, about 2 lbs. of the total weight of the mixture was added to the flask, corresponding to about 2 lbs.
．． Of t 0.02 mol) of sulfuric acid (H, 80,) catalyst was added. The liquid mixture was stirred at room temperature for about 4 hours to prepare an equilibrated liquid product; the equilibrated liquid product was neutralized with sodium bicarbonate (NaHCO3) and then reduced to an average filtration size of approximately The equilibrated liquid product, now properly a hydrosiloxane fluid, was filtered through a pressurized filter having a 25C
It is a clear liquid with a viscosity of 1.60 cstk at a temperature of . The Si-H content of the hydrosiloxane fluid as determined by alkaline hydrolysis is
This corresponds to 67.1 CC of H3, and the calculated molecular weight was 334. This hydrosiloxane fluid has an average composition of MeB 810 (Me!8 to) L, 51Me
810)t. S I Me.

It had This will hereinafter be referred to as hydrosiloxane fluid ①.

500j equipped with mechanical stirrer, condenser and temperature controller
Add 3 drops of hydrosiloxane fluid to the 3 tube reaction flask.
1. Of, (0.09 mol) was charged.

Hydrosiloxane fluid #1 was then heated to 85°C and the chloroplatinic acid solution was added to the reaction flask.

Furthermore, add 12.7ft0.1 of 1-octene to the reaction flask.
1 mol) was added dropwise in a 20 part excess of concentration f. As a result, an exothermic reaction occurs, and this reaction can be determined by taking 1 cc of sample from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation test tube test.
It was monitored by measuring the content. All Si
After the -H had reacted, the reaction flask was cooled to room temperature.

The product thus produced was treated with sodium bicarbonate.
aHco, neutralized with 1 and pressurized pfiltration +lk with an average filtration size of 0.10 microns. - filtered through. The product was an organosiloxane copolymer of the present invention having a viscosity of 3.43 cstk at a temperature of 25°C. This organosiloxane copolymer was a clear amber liquid with a calculated molecule of f446. The organosiloxane copolymer has an average composition Me, 8 io (Me, S io), tMes 1
O)LoS iMe.

(CH2) had a tC ratio. Hereinafter, this will be referred to as an organic siloxane copolymer.

Hexamethyldisiloxane (Me, 8i0SiMe
, 337.17'I (0.23 mol), cyclic 9 formula%) was charged with a mixture Wt consisting of 120.67f of poly(methylhydrogensiloxane) containing about 0.34 equivalents. Approximately 2.0 f (0.02 moles) of sulfuric acid IH, 80,0% catalyst was added, corresponding to approximately 2 parts of the total weight. The mixture was stirred at room temperature for about 4 hours to prepare an equilibrated liquid product.

This equilibrated liquid product was neutralized with 9% sodium bicarbonate (NaH) and then filtered through a pressure filter having an average filtration size of about 0.02 microns. The equilibrated liquid product is 2.29cstk at a temperature of 25C.
It is a transparent liquid with a viscosity of . The 5i-H content of the drosiloxane fluid, as determined by alkaline hydrolysis, corresponded to 76.7 cc of Hl per hydrosiloxane fluid, and the calculated molecular weight was 438. This hydrosiloxane fluid has an average composition of Mess iO (Mess 1o)2. , (Me810
)0. ．． 8 iMe3. This will hereinafter be referred to as hydrosiloxane fluid ①.

Part B: New Organosiloxane Copolymer Preparation Machine 34.0 f of the hydrosiloxane fluid was added to a 500-liter reaction flask equipped with a vertical stirrer, a condenser, and a temperature controller.
(0°08 mol) was charged.

Hydrosiloxane Fluid V was then heated at 850 t and the chloroplatinic acid solution was added to the reaction flask.

Furthermore, 1-octene 15.3 F (0,
14 mol) were added dropwise at a concentration of 20% excess.

This resulted in an exothermic reaction. This reaction was confirmed by taking 1 cc of sample from the reaction flask and measuring the amount of hydrogen liberated by alkaline hydrolysis in a fermentation test tube test.
-H content was monitored. all 8
After the i-H had reacted, the reaction flask was cooled to room temperature. The product thus produced was treated with sodium bicarbonate (N
aHCo, 1 and filtered through a pressure filter with an average filtration size of 0.10 microns. The product is at temperature 2
The organosiloxane copolymer of the present invention had a viscosity of 5.73 cstk at 5C. The organosiloxane copolymer was a clear amber liquid with a calculated molecular weight of 606. The organosiloxane copolymer has an average composition of Me, S iO (Me, S io 12., (MeS
io bill, 8 iMe.

(CH, 3rd OH.

It had This will be referred to as organosiloxane copolymer E hereinafter.

Example ■ Hexamethyldisi-tetraxane (Me, 84051 Mg
, )4 N56t (0.29 mol), cyclic dimethylsiloxane tetramer (MeIS (Q)43L86F
(0.43 mol) and (MgH840) in an amount of about α36 equivalents of poly(methylhydrogen siloxane) 2L55F
A mixture consisting of was prepared. Furthermore, about 2.0P (((
2 moles of LO) of sulfuric acid (E, So, ) catalyst was added. The mixture was stirred at room temperature for about 4 hours and the equilibrated liquid product! ! ! Made in IL.

This equilibrated liquid product was converted into sodium bicarbonate (N
aHCO,) and then filtered through a pressure filter having an average filtration size of approximately α02ξ/.

The equilibrated liquid product, now properly referred to as a hydrosiloxane fluid, is a clear liquid with a viscosity of 169 astk at a temperature of 25C. The 5i-H content of the hydrosiloxane fluid, as determined by alkaline hydrolysis, corresponds to 8α2ct of H2 in the hydrosiloxane fluid;
And the calculated molecular weight was 349. This hydrosiloxane fluid has an average composition Me, SzeO (Mtt, S 40), , (Has
40), , 68 thht@ will hereinafter be referred to as hydrosiloxane fluid (■).

@Part B: Preparation of a new organosiloxane copolymer Into a 500g, 3-tube reaction flask equipped with mechanical stirring, condenser, and temperature control features, 35% of the hydrosiloxane fluid ■ was added. O
f + 0.10 mol] was charged.

Hydrosiloxane fluid (1) was then heated to 85 tZ' and chloroplatinum solution was added to the reaction flask.

j! In the reaction 7 rasu, 1-octene 1 & 5t (α14
mol) was added dropwise with a 2014 excess concentration. As a result, an exothermic reaction occurred, and this reaction was determined by taking a sample from the reaction 7 flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation test tube test to determine the residual Si-
The H content was measured and monitored. all 5t
After -H had reacted, the reaction flask was cooled to room temperature.

The product thus produced was treated with sodium bicarbonate (Na
HCOs) and filtered through a pressure filter with an average filtration size of 0.10 microns. The product is wet 12
The siloxane copolymer of the present invention had a viscosity of 454 aatk at 5C. This organic xane copolymer was a clear amber liquid with a calculated molecular skeleton of 489. The average composition of the organosiloxane copolymer is Me, SiOIMa, SiO>, 3 <Mg5iO),
□SiMsi I had CMtly CHs. This will be referred to as organosiloxane copolymer F hereinafter.

(Example: 4 parts: Preparation of hydrosiloxane fluid. Hexamethyldisiloxane (#g, Ss□5thh3) into a 5OO-3 reaction flask extended with a mechanical stirrer.
52 f 10.32 mol), ring t dimethylsiloxane tetramer <Me, SiO), 29.42 f (0,4
A mixture consisting of poly(methylhydrogensiloxane) 19.05f containing (0 mol) and (MaH8iO) at approximately α32 modulus was charged. Furthermore, about z o y (a
, 02 mol) f) Me (HtSO*) catalyst was added. The mixture was stirred at room temperature for about 4 hours and an equilibrated liquid product appeared. The equilibrated liquid product was neutralized with a sodium bicarbonate (NaHCOs) quadruple tube and then filtered through a pressurized V tube having an average F pan size of about 0.02 microns. The equilibrated liquid product, now properly referred to as a hydrosiloxane fluid, is a clear liquid with a viscosity of L 55 catk at a temperature of 25C.

What is the S i-H content of hydrosiloxane fluids as determined by alkaline hydrolysis? Hit 7
It corresponds to H and VC of 11CC, and the calculated molecular weight is 3
It was 15. This hydrosiloxane fluid has an average #le
.

Me, S to (Mass to),,, @ (Ha
s 1o)1. . File.

It had This will hereinafter be referred to as hydrosiloxane fluid Vt.

500d with mechanical stirrer, condenser and R variable regulator
Add hydrosiloxane fluid Vl to the three tube reaction flasks of
3+hof (0.11 mol) was charged.

Next, add siloxane fluid up to 850,
Reaction 7 Platinum lF' solution was added to the reaction mixture. Furthermore, 1-octene 1a2F (0.13 mol) was added dropwise to the reaction flask at a concentration of 20 cm. This exothermic reaction occurred, and this reaction was determined by taking 1 cc of sample from one reaction flask and measuring the amount of water liberated by alkaline hydrolysis in a fermentation tube test.
- Monitored by measuring Bt@ trap. After all the Ss-H has reacted, move the reaction flask to room temperature! ! A-
Cooled at 1. Neutralize the compound with sodium bicarbonate (1NaHco, ) as %e and filter it through a pressure filter having an average diameter of α10 μm.

The product was an organosiloxane copolymer of the present invention having a viscosity of &66 cstk at W 25 c.

This organosiloxane copolymer has a calculated molecular weight of 427
It was a clear amber liquid with a

The organic siro-san copolymer has an average composition Me, S io (Me, S sO) 5ell (M
eSO),,. 5ide.

(C France) had MaCl1s. This will be referred to as DJ-precipitated organosiloxane copolymer C. .

Example 500R equipped with mechanical stirrer, condenser and wet chamber regulator
Add the hydrosiloxane fluid ■ to the 3-ply reaction flask at 31. OF (α08 mol) was charged.

Next up is hydrosiloxane fluid! was heated to 85C and the chloroplatinum # solution was added to the reaction flask.

Furthermore, t-hexene IQ, 2F (0,1
2 ml) was added dropwise at a concentration of 20% filtrate.

As a result, an exothermic reaction occurred, and the remaining S
Monitored by measuring the i-H signature. After all S<-H has reacted, move the reaction flask to room temperature! It was cooled down. in this way? l: Neutralize the enlarged product with charcoal or sodium hydrogen (NaHCO) to obtain an average Fi8 size of 0,
Filtered through a pressure filter with 10 microns. The product was an organosiloxane copolymer of the invention having a viscosity of &37 estk at a temperature of 25r.

The combination of this organic siloxane was calculated and the hexagonal information 47
A clear amber liquid with 6 and 9.

The organosiloxane copolymer has an average composition Me, S to <MetS io), 0g IM
aS 40), ,, S tKg.

(C1ft) had scRs. This will be referred to as organosiloxane copolymer H hereinafter.

Example: Production of a novel organosiloxane copolymer 500 units equipped with a mechanical stirring unit, a condenser and a lagoon gauze
Add 31.ml of hydrosiloxane fluid to a 3 mL Tulo reaction flask. OF! 0.09 mol).

The hydrosiloxane fluid 1 was then heated to 85°C and the chloroplatinic acid solution was added to the reaction 7 razz.

Add 1-hexene & 75f (0,1
0 mol) was added dropwise at a concentration of 20% i1%. As a result, an exothermic reaction occurred, and the remaining 5i-H content was determined by taking a sample lIr- from one reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation test tube test. monitored by. After all 5i-H had reacted, the Reaction 72 Sco was cooled to the chamber. Like this F! The prepared product was neutralized with sodium hydrogen carbonate (NaECO,), and the average P dimension α1
Filtered through pressurized F:iF, F with o micron. What is the product? ? l:2sCK ite a 21 cs
tk (F) The organic siloxane copolymer of the present invention had a viscosity H.

This organosiloxane copolymer has a calculated molecular weight of 447
It is an amber colored liquid with transparent power and mourning.

The organosiloxane copolymer has an average composition of
iO),,6SiMa.

(to C) had scA. This will be referred to as organosiloxane comonomer I hereinafter.

Indeed, Example
Hydrosiloxane fluid (2 & Oflα08 mol) was charged into an Omf3 reaction flask.

Hydrosiloxane fluid I was then heated to 85C and chlorplatinum I! was added to the reaction flask. ! ? solution was added.

Furthermore, 1-hexene 8.25 F (0,
10 mol) was added dropwise at a conductivity of 2Q4 times 4 times. As a result, an exothermic reaction occurred, but this reaction was confirmed by taking a sample IOC from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation test tube test.
Monitored by measuring the i-11 content. After all the S t -H has reacted, reaction 7: 7 sulfur is added to the chamber m.
Cooled to . The product thus produced was neutralized with sodium bicarbonate (NaHCO,)-C to give an average Fi size of 0.
．． It was heated through a pressurized P-A machine with a pressure of 10 microns. The product was an organosiloxane copolymer of the invention having a viscosity of λ30 catk at a temperature of 25r.

The organosiloxane copolymer with has a calculated molecular weight of 433
It was a transparent amber variant with a .

The comb siloxane copolymer has an average composition Me, S io (MelS to) , , (h
fms <0) 1. . SjAfg.

Cao (to C) had scHs. This is referred to as Ariike siloxane copolymer J.

$ Male side
3 LQf (0.09 mol) of hydrosiloxa/fluid 1 was charged into a 3-siloxane reactor flask of 0.00 rtrl.

The human siloxane fluid (1) was then heated to 85C, and the platinum e solution was added to the reaction flask.

Furthermore, 9.6 f (α11 mol) of 1-hexene was added dropwise to the reaction flask at a concentration of 20 t excess.

As a result, an exothermic reaction occurred, but this reaction was investigated by taking one sample from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation test tube hVc.
Monitored by measuring i-H content. After all of the 5i-H had reacted, the reaction 7 lasco was cooled to Okiken. The product thus prepared was neutralized with sodium bicarbonate (NaHCO, ) and FA'd through a pressure filter cage having an average filtration size of 0.10 microns. The product was an organosiloxane copolymer of the invention having a viscosity of Z 73 estK at a temperature of 25 CK. This organosiloxa 7-copolymerized polymer was calculated to be a transparent amber liquid having nine molecules of T418. The organosiloxane copolymer has an average composition Me@Sio <)IhtS 1o) 1.1. (Mg
S<0), . SiM#.

! (CZ/l)s CHm. This will be referred to hereinafter as organosiloxa/copolymer.

Implementation bankruptcy New organosiloxa/copolymer PI @ mechanical stirrer,
Hydrosiloxa/Fluid V was added to 3ζ or (
o, 08 mol).

Hydrosiloxane Fluid V was then heated to 85°C and the alkaliplatinic acid solution was added to the reaction flask.

jl Ic Reaction 7 In the flask, add 1-hexene 1L49F
(0.14 mol) was added dropwise at 8 degrees with an excess of 20 inches. As a result, an exothermic reaction occurred, and this reaction was measured by taking a sample ICC from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation tube test to determine the Ss-H content. I stood by and watched. After all the St-H had reacted, the reaction flask was cooled to room m. The product thus prepared was neutralized with sodium bicarbonate (NaHCQs) to an average filtration size of 0.
．． Filtered through a pressurized F bomb with 10 microns.

The product was an organosiloxane copolymer of the invention having a viscosity of t54 ctttk at a temperature of 25C.

This organosiloxane copolymer has a calculated molecular weight of 564
It was a clear amber liquid with a

The organosiloxa/copolymer has an average composition Ma, SiOtug, S to ), (Has
io),,g84Mg.

CM (CM), had CH3. This will hereinafter be referred to as an organosiloxa/copolymer.

Example ■ 50 equipped with a mobile stirrer, FII condenser shaker temperature controller
0-3 to the reaction flask, hydrosiloxa/fluid■
3NOP (Q, 10 mol) was charged.

The hydrosiloxa/fluid 1 was then heated to 85C and the reaction flask: IK chloroplatinum solution was added.

Furthermore, 1-hexene 1137F ((L1
5 mol) was added dropwise at a concentration of 20 ml. As a result, an exothermic reaction occurs.This reaction can be determined by taking 1 cc of sample from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation tube test.
The samples were monitored by measuring -H content. After all the S i -H had reacted, the reaction flask was cooled to room temperature. The product thus produced was neutralized with sodium hydrogen carbonate (8'aHcO,) and filtered through a pressure filter with an average filtration size α10 microns. The product was an organosiloxane copolymer of the present invention having a viscosity of 3.50 astk at 1#'25t:'.

This organosiloxa/was a clear amber liquid with a calculated molecule t454. The average composition of the organosiloxane copolymer is Mg, S s Q < M gt S s O) to
, s jM a S $ O)fall S sA i8
゜1 Cat 1m CHs. This will hereinafter be referred to as organic silica U xane copolymer M.

Example
0 m/! 3aQf4 (1 mole of L1) was charged with hydrosiloxane fluid (1) into a 3-silo reaction flask.

Hydrosiloxane fluid 1 was then heated to 85C and chloroplatinum e solution was added to the reaction flask.

Furthermore, in the reaction flask, 1-pentene 9.1 P (α1
3 mol) were added dropwise at a concentration of 20% excess.

As a result, an exothermic reaction occurred, but this reaction was confirmed by taking a sample of ice from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in a fermentation test tube test.
-H content was measured and monitored. After all S 1-If had reacted, the reaction flask was cooled to room temperature. The product thus prepared is neutralized with sodium bicarbonate (NaHCO,) and the average filtration size o, tos
Filtered through pressure filter with clone. The product is Z8? at a temperature of 25r? The organosiloxane copolymer of the present invention had a viscosity of aat&. The organosiloxane copolymer was a clear moss-colored liquid with a calculated molecular weight of 385. The organosiloxa/copolymer has an average composition Me, S io (MetS to), (Me
S io), (, S 1Mg3(CM, ), CH
It had 8. This will be referred to as organosiloxane copolymer N hereinafter.

Example n Hexamethyldisiloxane (Mg3SsO8sMa
, ) 3140? (0.20 mol), ring f dimethylsiloxane tetramer (Me!5in).

Poly(methylhydrogen siloxa/
)lλOf was charged. Sara K.

Into this flask, about 2.0F (a02 mol l) sulfur #(H,,S'0.) corresponding to about 2 times the total X* of the mixture
## added. The mixture was stirred at room temperature for about 4 hours to prepare an equilibrated liquid product. This equilibrated liquid product was neutralized with sodium bicarbonate (Narc O, 4%) and then filtered through a pressure filter having an average F-scale size of approximately α02μC27.

The equilibrated liquid product, which can now be properly described as a hydrosiloxane fluid, is 25C (l 10 ea at 1!lit).
It is a clear liquid with a viscosity of tk. S t- of the hydrosiloxane fluid as determined by alkaline hydrolysis
The H content was equivalent to 50.45 hydrogen atoms in the hydrosiloxane fluid, and the calculated nine molecule elements were 444.

This hydrosiloxane fluid has an average #l composition of MeSSiO (MSt). CMaS40),,
. It had SjM-1. This will hereinafter be referred to as hydrosiloxane fluid ①.

500a with mechanical agitator, shaker and puller
Add hydrosiloxane fluid ■ to the tg 3-silo reaction flask.
4Q, Oflα09 mol) was charged.

The hydrosiloxane fluid stomach was then heated to 85C and the chloroplatinic acid solution was added to the reaction flask.

Furthermore, 1-pentene 7,56 f(0,
11 moles), 20 fi luck! 1t! ! It was added drop by drop. This gauze exothermic reaction occurred, and the residual S i -H content was measured by taking 1 cc of sample from the reaction flask and measuring the hydrogen liberated by alkaline hydrolysis in fermentation test tube test #. monitored by.

After all the St-H has reacted, move the reaction flask to room m
Cooled to . The product thus prepared was neutralized with sodium bicarbonate (NaHCO, ) to an average filtration size of 0.
Passed through a pressurized P-week machine with 10 microliters. The product was an organosiloxane copolymer of the present invention having a viscosity of 5.62 cmtk at 125G.

This organosiloxane copolymer has a calculated molecular weight of 556
It was a clear amber liquid with a

The average composition of the organic silica/copolymer is Mg, SiQ (M a t S (Q ) s,.(
MeStO)H,. Stem.

blasphemy ICE, ), CM.

It had This will be referred to as organosiloxane O hereinafter.

Male and female side ■ 500 equipped with mechanical stirrer, condenser and temperature sea bream machine
In a tnl reaction flask, add S-tetramethyldisiacy (Hum, StO8iMetH) 218 f (
α18 mol) and the formula dimethylsiloxane tetramer (
A mixture consisting of No. 212f (Me, St, ) 212f (135 mol) was charged. The mixture was heated to 400 °C and stirred for 4 hours on VC in the presence of anhydrous trifluoromethylsulfone <CF, So, H). This heating and stirring procedure resulted in an equilibrated liquid product. The equilibrated product was neutralized with 4 liters of sodium bicarbonate (NaHCOs) and then filtered through a pressurized P-yllkm having an average filtration size of about 0.02 microns. The equilibrated liquid product, now properly referred to as a hydrosiloxane fluid, was a clear liquid with a viscosity of 140 catk at a temperature of 25C and a calculated molecular weight of 282. This hydrosiloxane fluid has an average composition Hug! S to iMtt, S io), S 4Ma
! II. This will hereinafter be referred to as hydrosiloxane fluid ①. The composition and properties of the human tetrahydrofurids of the present invention are shown in the table below.

FB section: new organosiloxane copolymer ve mechanical stirrer, condenser and r! Equipped with an A degree adjuster, 9500-3
27. Add hydrosiloxane fluid into siloxane reaction flask.
86ft 110mol) was charged. Next, this Hitata Siloxane Fluid X was heated to 75G. 216 f (α24%) of 1-octene was added to the reaction flask at 201
A surplus of 100 ml of the gastric luplatinic acid solution was added dropwise. The product prepared in this way was converted into sodium bicarbonate (NaH).
CO, ) and passed through a pressurized Pi machine with an average filtration size of 0.10 ξ km. The product with is at temperature 2
The organic si-tetraxane copolymer of the present invention has a viscosity of 40 astk at 5C. The organic si-tetraxane copolymer is a clear amber liquid with a calculated molecule t506. This organic silica xane copolymer is CH, (CM, l, -Jim, S to (Me, S
to), SiHa, -(CH,), CH.

This is hereinafter referred to as organosiloxane copolymer P. The composition and properties of the organosiloxane copolymers P and T of the present invention are shown in Table 2 below.

Example Shoulder Mechanical Stirrer, Condenser and Warm IFWII Moderate 5
In a 00 m reaction flask, S-tetramethyldisiloxane < Hug, SiS108i, B) 1 & 83 f(
A mixture consisting of 3115 F (0.14 mol) and 5-mer cyclic dimethylsiloxane (M#lS-Q), 3115 F (0.42 mol) was charged. Add this mixture to 40C'! Trifluoromethylsulfonic anhydride qCF, So
, H) for 4 hours. This heating and stirring step resulted in an equilibrated liquid product. The equilibrated product of sodium bicarbonate <NaHCO, )4
Neutralize with tt, then average F remains size approximately o, 02t
The entire pressurized filter with four filters was installed. The equilibrated liquid product, now properly termed a hydrosiloxa/fluid, was a clear liquid with a viscosity of 143 etttk at a temperature of 25C and a calculated molecular weight of 356.

This hydrosiloxa/fluid has an average composition Hug! S s OIMa @ SO) 3. . 5iA(
a, If. From here on, hydrosiloxane fluid
referred to as.

500m equipped with mechanical stirrer, condenser and temperature regulator
g of siloxane fluid X into the reaction flask.
3G, 69r (α09 mol) was charged. The hydrosiloxa/Fluid
The chloroplatinic acid solution was added dropwise in an amount of 0.0 ml.

The product thus prepared was treated with sodium bicarbonate (Na
Neutralized with HCO, 1 and passed through a pressure-filter with an average transient size αtot rum. This product is m degree 2
The organosiloxane copolymer of the present invention has a viscosity of 5.30 eatk in SCtIC. The organosiloxane copolymer is a clear, amber liquid with a calculated molecular weight of [580t]. This organosiloxane copolymer is CM, (CH21y-hh, S 40 (Mg, S
to),,. S&g, -10H,), (J.

It had This will be referred to as organosiloxane copolymer Q hereinafter.

500m working side layer equipped with mechanical stirrer, condenser and temperature controller
Reaction flask IIC, S-tetramethyldicyts #
t7 (Hug!SsO8sMa!l1)2 a 8
A mixture consisting of t ((L207l) and cyclic dimethylsiloxane tetramer (Me,Sso), 6λO5'+0.85 mol) was charged. This mixture was heated to 400°C and anhydrous trifluoromethylsulfone #tcF
, So, H) for 4 hours. This heating and stirring step resulted in an equilibrated liquid product. This equilibrated product was dissolved in sodium bicarbonate (A' aH
Neutralize with COs 3 41i1't and then pass through a pressure filter with an average filtration size of about 0.02 microns.
I met you. The equilibrated liquid product, which can now properly be called a hydrosiloxa/fluid, has a temperature of 160 aat at a temperature of 25C.
It was a clear liquid with a viscosity of 100 ml and a calculated molecular weight of 449. This hydrosiloxane fluid had an average composition of HuetSio (Me, 540), 584M6B. This will be referred to hereinafter as hydrosiloxane fluid X.

Part B: Preparation of a novel organic citric acid Φ-sane copolymer Hydrosiloxane fluid M44.9P into a 500-3 mL reaction flask equipped with a mechanical stirrer, a condenser and a temperature regulator.
+0.10 mol) was charged.

The hydrosiloxane fluid X was then heated to 750°C. In this reaction flask, 1-octene 57°I S'
(0.51 moA) at 20% i% @J'tk and chlorplatinum 6! Ic of the solution was added briefly. The product thus produced was neutralized with sodium bicarbonate (#aHCO,) and filtered through a pressure filter with average filtration dimensions o, xo microns. The product is an organosiloxane comonomer of the present invention having a viscosity of 145 cstk at a temperature of 25p. The organosiloxane copolymer is a clear, amber liquid with a calculated molecular fIk of 673. This organosilxane copolymer is CMll(CH,l, -Ah, :Eto(Aft, 5
to), , 5tAh, -(CH,)fuCH3. This will be referred to as organosiloxane copolymer R hereinafter.

Example
Add S-tetramethyldisilo*sy <
Hug, StO8tMatH)2 a 8 f (0,
20 mol) and slotted dimethylsiloxa/tetramer (M
e, St,), 740? A mixture consisting of (LO%) was charged. The mixture was heated to 40C and stirred for 4 hours in the presence of anhydrous trifluoromethylsulfo/acid (CF, 80.H). This heating and stirring procedure resulted in an equilibrated liquid product. This equilibrated product was dissolved in sodium bicarbonate (NaHCO, 34% by weight).
and then passed through a pressurized Pi machine having an average filtration size of about α02 microns. The equilibrated liquid product, which can now properly be called hydrosiloxa/female, has a temperature of 25
Clear 8 with a viscosity of 2.89 catk in CIIC
Liquid A had a calculated molecular weight of 505.

This hydrosiloxa/female body has an average composition Hug, S　iOj&+++, S　io　)@,.

It had S tMg,H. This is hereinafter referred to as human gastric siloxane fluid.

1500 with mechanical stirrer, condenser and temperature controller
d into the 3 siloxane reaction flask, human stomach siloxane fluid M
5α1? (α10 mol) was charged.

This hydrosiloxane fluid layer was then heated at 75 ct. This reaction flask was filled with 1-octene 67.3F (α6
0 solu) in a 20% excess and chloroplatinic acid solution were added dropwise. The product thus prepared was neutralized with sodium bicarbonate (A'a HCQs) and passed through a pressure filter with an average oversize α of 10 microns to F3N4.
Shita. This product has a temperature of 14.1est at g5C.
The organosiloxa/copolymer of the present invention has a viscosity of k. The organic simixane copolymer has a calculated molecular weight of 729
It is a clear amber liquid with a This organic penta-organic tetraxa/copolymer is C1i, l C1l, ), -M#, SiOihh
, S io)g ,. 81Mg, -(CM, ), C
M.

It had This will be referred to as organosiloxane copolymer S hereinafter.

Example■ New organic siloxane copolymer I? ! ! - Into a 500 m 3-cylinder reaction flask equipped with a mechanical stirrer, a shaker and a temperature controller, transfer the human-infected xane fluid 1 (51L5F
(α20 mol) was charged.

This hydrosiloxane fluid K was then heated to 75r. This reaction 7 ras: rl (1-pe/ten s 16 f
1 O, 47% L) was added with a 20% residue and the platinum P solution was added dropwise. The product thus produced was neutralized with sodium bicarbonate (7v aHCOs) and subjected to P-oxidation through a pressurized Fm machine with an average filtration size of 0.10 microns. This product is produced at a temperature of 25C.
The organosiloxane copolymer of the present invention has a viscosity of Beatk. The organosiloxane copolymer is a clear, amber liquid with a calculated molecular weight of 422. This organosiloxane copolymer is Tsuru (to C), -M~SiO (M#tS10)tSα~-
(q) It had 4 cups. This will be referred to as organosiloxa/copolymer T hereinafter.

EXAMPLES ~XX Beans In these examples, the above-described organosiloxa/copolymers of the present invention are used as foam-stabilizing surfactants in 7-ohm production reaction mixtures to produce high modulus polyurethane foams. was e-built.

For purposes of comparison, a commercially available 7 ohm stabilizing surfactant of Class 2W1 other than 1 Invention-X was used.

These are herein referred to as bound siloxa/copolymers AA
and organosiloxa/copolymer EE. These siloxane-oxyalkylene/foam stabilizing surfactants have the following average composition:

Organosiloxa/Copolymer AA: U.S. Patent No. 8741,91? High elastic foam surfactant within the box of No.

Me, SiO(Af~St,), (MaSiO)
, SiM~C,Ii@(QC,H,)t,lQC,B,
), OMg (thermosetting soft foam surfactant).

Additionally, for comparison purposes, four other foam stabilizing surfactants outside the scope of the present invention were used. These are referred to herein as organosiloxane/copolymer CC1 organosiloxane copolymer DD, organosiloxane copolymer EE and organosiloxane copolymer FF. These alkyl-modified siloxa/copolymer surfactants have the following average composition: MS io IMe, S 401+. t
CM.

(cold cure high modulus foam surfactant with s:p ratio of 40).

Me, 840 (Me@5iO), 1g (MaStO)
To 6StM (C-Bird) - C-Bird (cold-curing high modulus foam surface active agent with an s:p ratio of α19).

Organosiloxane copolymer EE: CHm(C'F4)@-M4SsQ(Mat
5sQ)t,sSsAfg,-(CA)9
A cold-curing, high-modulus 7 ohm surface active pouring agent containing 49.5 weights of R/ groups.

CHs (CHt)a -M% S to (M4
S5O)t*, sSiMq-(CA)4C
A (cold-cure high modulus foam surfactant containing R' groups at 1λ6% by weight).

The composition of the foam production reaction mixture is shown in Table A. Polyol! 60 Polyol 40 Polymer/Polyol■ -Touchi! ! l:I
Q, 15H, O & 5 Catalyst Seal - Catalyst Seal α50 Touch #■
- Polyol I - Catalyst Y
0.10 organosiloxane copolymer surfactant variable catalyst III''W
L7 foaming agent! 7.0 Incyanate! 44 Fisocyanate 1 - Flame retardant
Form generation reactions for the zO side ~xxxv were carried out according to substantially the same general method including the following steps. The organosiloxa/copolymer surfactant and dibutyltin dilaurate were premixed and dispersed with a spatula. Table A polyol and polymer/
Pre-mix the polyols and add 250f to Lily Cup L
Lily esp). The organosiloxane copolymer surfactant/diptyltin dilaurate premix was added to the polyol/polyol premix via a 50H syringe and dispersed with a spatula until a homogeneous mixture of polyol/surfactant was formed in the lily cup. Ta. adding a premix consisting of water, a blowing agent, and the remainder of the catalyst from Table A to the polyol/surfactant mixture;
Disperse with a spatula until homogeneous in the Lily Cup. Lily cup containing foaming ingredient, diameter 3
drill press equipped with a 211i three-bladed screw propeller
s) put down. Mixing in drill press is 2150
The rotation was performed for 10 seconds at revolutions/minute.

When the polyol/polymer-polyol mixture was highly viscous, the lily cup had to be moved around to ensure proper mixing. Then quickly add the isocyanate to the other ingredients without stopping the drill press and continue mixing for an additional 7 seconds.

The reaction mixture was immediately poured into an 8 inch x 8 inch x 6 inch cake box supported by a wooden mold and allowed to rise. After completing the uplift, 7 ohm pange oafrLb%
The foam was allowed to sit in the cake box for 2 minutes to avoid densification at the bottom of the cake. Next, form 1
Samples of the foam product were prepared for experimental fishing evaluation by curing at 25c for about 10 minutes.

The organosiloxane copolymer surfactants of the present invention having the formula (!) and f(1)K'' were used as solutions in polyurethane foam formulations.

This solution is an organic siloxane copolymer surfactant LSgp.
It consisted of 197.5% polyol. A control organic si-tetraxane copolymer surfactant outside the scope of this invention was also used as a solution in a polyurethane foam formulation. The organosiloxane copolymer AA is an organosiloxane copolymer with 10 to 35 hydrogen atoms and a polyol solvent of 65 to 9
A solution consisting of 0% by weight was used. Organosiloxane copolymer BB was used in a solution consisting of 40 to 60 gtcs of organosiloxane copolymer and 40 to 60 gtcs of polyol solvent. Organosiloxane copolymers CC1DD, EE and FF contain 5% by weight of organosiloxane copolymer and 197.51% polyol! It was used in a solution consisting of r amount.

The results of an example in which an organosiloxane copolymer of the type represented by (1) above was used as the form stabilizing surfactant component of the %7 ohm production reaction mixture are shown in Table B below.

Table B (continued) α■ J Me, S 40 <M
e, S 40), , y < MaS 40), , lS
iMg.

To Ayuda) To IC αIX K Me, SO (M#!
S 40), 0g IMaS 40), , O8Me.

(CM, ) wc”m αX N Me, S <0 <Me
,S 1O)l,H(hhs to), ,684M6
t(J4)4 C8([11BB hbffSto
IMqSto)y, (hbsto)1,5t7L/j.

Sarashi (α; 8) my (to 'Q.

α00g None Excessive 11. αh Table B (Continued) Rate Concentration of surfactant solution ** Total # degree of O, S or more and 10 or less is a satisfactory 7 ohm, IJJ binding ** A total concentration of α5 or more and aO or less is a satisfactory 7 ohm The data in Table B shows that the organosiloxane copolymers of the present invention are effective stabilizers in high 9Ii polyurethane foam formulations. It is shown that.

The results of an example in which an organosiloxane copolymer of the type represented by formula <ff) above was used as the foam-stabilizing surfactant component of a foam-forming mixture are shown in Table C below.

XXXVI S CM, (G/7.
), -Me, ! i io (Mg2 S iU ).

This surfactant solution alf 7.0 None Slight, @ S 1Mmg - (cH,)y #1
αl Slightly None α5 None None None LO None ZO None None & O None λS None Slightly I SiMa@-(C1ip)@CM@
(LO!! Very rough No LOffi
Very Slight LO @ Slight &5 Very Slight Slight 40 None Moderate 0.51Mg*-(CMI)4CM, α
O1 Slight None a02 Very Slight Slight No CLIO Moderate & 3G None Excessive The data in Table C demonstrate that the organosiloxane copolymers of the present invention are effective stabilizers in high modulus polyurethane foam formulations. .

Example KL Siloxane copolymer G' in 7 as a foam-stabilizing surfactant component in a high modulus polyurethane foam formulation? rEvaluated on industrial desert machinery.

The bottom shape and free heave conditions for this machine are shown in the table below.

Free raised foam mixer speed 2500 rpm Time Resin mixing 60 seconds degassing 25 seconds isocyanate mixing 5 seconds cure Polymer G1 (7) was used as the ohm stabilizing surfactant and is shown in Table E below.

According to the data in Table E, the organosilokinane copolymer of the present invention also has
It has been demonstrated that a stabilizer is suitable for use in high modulus polyurethane foams formulated in industrial scale machines.

table ! Formula 14 %Formula% M#, SiOiMa@Si0)13g(MgSiO)H
, @S (J/g.

Mass iO (Af ttH8iO) @, (, (Ma
S io )i, @S iMa@315
L55 7LIQ444
! 10 5 (L45 table
1 1 Mass to (Mass io)
1.6 (M as iO)H, @! i iMa@number<011*)vcHa t MegSiO(MglS 1o)H, @(MgSiO)1. . SiMa@(('&
*) v&&s Mass io (Mass biteicJ)1.
1 (MgS 1O)B ,. SiMa@(Cff
*) vcHa NBS iO (M alsiO)
1.1 (le tgsi υ)1. . St tB(c
gt) TeC1im Mtt@SiO (Mg, S< O) 1. , (A
P' ms io ) H,, S iMgB<CI
i*) vcHa Mess Q (Afa @S slJ)
1.1 (Mg S i ())1.1H8iM
No. 13 (CH*hCHm Viscosity at 25°C <eatk) D/D' ratio - 111 Akebono 1 Akebono - - Fighting pottery - - Floor 11 - Kami - 11 ■■ - - M -
-■■-------■-509 433
L58475 λ75
L90461 199
L70446 143
L50606 &73
(, @7489 454
L20M#sS iU (Mi!s
iO) 1.1g (MaS 1O)H, @S iMtt
llCMl), CE.

! MalSiO (MalSiO)1. @(
MgSiO)1. @SiMag<CHl)mcHs MalSiO(MalSiO)t,e (MeSiC)
)1. @SiMeB<CHl)scIim MeBSiO(MassiO), , (MgSiO),.

SM#.

■ (GH,), G#.

Ma @S iU (Mass iO)1.1 (Me
S iC) )H,. SIM6 gang (C1i Ri, C1i HatakeMajSi (J (MassiC)) H, @ (MaFtU
)1. @SiMa@<CHl)mcH@Mass iC) (Mass jQ)1.1 (Af
as t O)H, @@S iMaB(C11g),
CM.

Ma, SiO (MalSiO) 1.1@(MgSiO)
8. . SiMsu(GjWtJa('&5 427 166 L2
5385! 65
L25556 482 1G.

Table Hydrosiloxane fluid (W type) - Structure of hydrosiloxane fluid K HMgffiSiO (
Ma2SiO)1SiMg@fiX
HMgffiSiO(Me@SiU)@51Mg@l
1XI HMatSiO(Mo2S
1U)4. @@51Mg! l1XI
HMa@SiU (Mo2S 1O)HE iMm@k
i2 B2 140 449 2.60 505 2.89

Claims (1)

Claims: 1. (a) (i) a polyether triol containing at least 40 mole percent of primary hydroxyl groups and having a molecular weight of from about 2,000 to about 8,000; and (ii) an average of said polyether triol and others. a mixture of polyethers having at least two hydroxyl groups, wherein the polyether triol of the mixture represents at least 40% by weight of the total polyol content. a polyol; (b) a polyisocyanate present in the mixture with the organic polyol in the principal amount and in the relative amount with the organic polyol required to produce the polyurethane foam; (c) foaming the reaction mixture; (d) a catalytic amount of catalyst to produce a polyurethane foam; and (e) a blowing agent in a small amount sufficient to produce a polyurethane foam;
) a high modulus polyurethane having a density not greater than 2.0 pounds per cubic foot, comprising simultaneously reacting and foaming a reaction mixture containing the organosiloxane copolymer of claim 1. Foam manufacturing method. 2. The method of claim 1, wherein the foam has a density not greater than 1.75 pounds per cubic foot. 3. The method of claim 1, wherein the foam has a density not greater than 1.05 pounds per cubic foot.